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CVE-2021-25993

20
FAUCET Score

CVE-2021-25993 is a Stored Cross-Site Scripting (XSS) vulnerability affecting Requarks wiki.js versions 2.0.0-beta.147 to 2.5.255. A low-privileged editor can upload a malicious SVG file containing JavaScript, leading to the exfiltration of JWT tokens and potential account takeover when a victim accesses the page. This vulnerability has a CVSS score of 5.4 (Medium), indicating a network-based attack with low complexity, requiring user interaction, and resulting in low confidentiality and integrity impact. There is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.0.1, <= 2.5.255CPE matchmatch criteria
cpe:2.3:a:requarks:wiki.js:*:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:requarks:wiki.js:2.0.0:beta147:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:requarks:wiki.js:2.0.0:beta148:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:requarks:wiki.js:2.0.0:beta174:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:requarks:wiki.js:2.0.0:beta180:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
46.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 76th percentile among its peer group of 15,225 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / Requarks/wiki/commit/5d3e81496fba1f0fbd64eeb855f30f69a9040718
PatchThird Party Advisory
whitesourcesoftware.com / vulnerability-database/CVE-2021-25993
ExploitThird Party Advisory